package org.example;

import java.util.Timer;
import java.util.TimerTask;

public class TimeDemo {
    public static void main(String[] args) {
        Timer timer=new Timer();
        timer.schedule(new TimerTask(){
            @Override
            public void run() {
                System.out.println("定时任务执行了");
            }
        },3000);
    }


}
